Properties of X-ray
1. X rays are electromagnetic(EM) waves of very short wave length
2. They travel in straight lines with the velocity of light
3.They are invisible to eyes
4. Under suitable conditions , X-rays are reflected & refracted like ordinary light
2. They travel in straight lines with the velocity of light
3.They are invisible to eyes
4. Under suitable conditions , X-rays are reflected & refracted like ordinary light
5. They are not deflected by electric and magnetic fields.
Wave length=1Å
Wave length=1Å
X-rays can penitrate throughbthe substances which are opaque to ordinary light eg: wood,flesh,thick paper,thin sheets of metals
6)They cause Fluorescence on many substanstances like barium,cadmium, tungstate ,xinc,sulphate etc.
7) X-rays can ionise a gas through which they pass
8) when X-rays are fall on certain metals ,they liberate photo electrons(photo electric effect)
9) when X-rays fall on heavy metals ,they produce secondary X-rays
10) X-rays have destructive effects on living tissues
(When they are exposed to human body , they cause reddening of the skin,sores and serious injuries to the tissues and gland .they can destroy white corpuscles of the blood)
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